20=-8b-5b

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Solution for 20=-8b-5b equation: 



20=-8b-5b

We move all terms to the left:

20-(-8b-5b)=0

We add all the numbers together, and all the variables

-(-13b)+20=0

We get rid of parentheses

13b+20=0

We move all terms containing b to the left, all other terms to the right

13b=-20

b=-20/13

b=-1+7/13

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